E553a – Magnesium silicates

The code E553a is used in accordance with EU Regulation (EC) No 1333/2008, while in the international Codex Alimentarius standard "Class Names and the International Numbering System for Food Additives (CXG 36-1989)" it is designated as INS 553, which includes the following subcategories:

• INS 553(i) — Magnesium silicate, synthetic (corresponds to additive E553a(i) under EU regulation)
• INS 553(ii) — Magnesium trisilicate (corresponds to additive E553a(ii) under EU regulation)
• INS 553(iii) — Talc (corresponds to additive E553b under EU regulation)